Friday
11 Oct/19
14:00 - 16:00 (Europe/Zurich)

Affleck-Dine Inflation

Where:  

4/3-006 at CERN

The Affleck-Dine mechanism is one of oldest and simplest ways of producing the baryon asymmetry, through the evolution of a complex scalar field that carries baryon number.  I will show that the original nonsupersymmetric model, with a renormalizable potential, can also give successful inflation, when supplemented by a nonminimal coupling to gravity.  The baryon asymmetry is generated mostly during inflation rather than afterwards.  Observable tensor perturbations can be produced, as well as baryon isocurvature fluctuations.  A simple extension of the model with color triplet scalars, allowing for perturbative reheating, makes it fully predictive, with no ambiguity in the horizon-crossing epoch.